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Mira Fasteners, a well-respected manufacturer and supplier located in Kuala Lumpur, Malaysia, specializes in high-performance ASTM A193 B8 CL3 Stud Bolts that adhere to rigorous international quality standards. Made from top-notch austenitic stainless steel, these stud bolts undergo a solution-annealing process to ensure outstanding corrosion resistance and mechanical strength. They’re specifically designed for high-temperature and high-pressure applications, making them a go-to choice in industries like petrochemical, oil and gas, power generation, and marine. With meticulous manufacturing, a variety of size options, and thorough quality checks, Mira Fasteners guarantees that their ASTM A193 B8 CL3 Stud Bolts provide reliability, durability, and consistent performance in critical applications around the globe.
These stud bolts are crafted from AISI 304 stainless steel and are solution-annealed to enhance ductility and corrosion resistance while delivering reliable tensile and yield strength. They boast excellent toughness, resistance to oxidation, and the ability to maintain their performance even at elevated temperatures. The composition includes chromium and nickel, which significantly boost their resistance to rust and chemical damage. The CL3 condition offers better low-temperature toughness compared to CL1 or CL2. Their non-magnetic properties and resilience under stress make them a top choice for challenging operational environments.
| Element | B7 | B8 | B8M |
| Carbon | 0.37 – 0.49% | 0.08% max | 0.08% max |
| Manganese | 0.65 – 1.10% | 2.00% max | 2.00% max |
| Phosphorus, max | 0.035% | 0.045% | 0.045% |
| Sulfur, max | 0.040% | 0.030% | 0.030% |
| Silicon | 0.15 – 0.35% | 1.00% max | 1.00% max |
| Chromium | 0.75 – 1.20% | 18.0 – 20.0% | 16.0 – 18.0% |
| Nickel | 8.0 – 11.0% | 10.0 – 14.0% | |
| Molybdenum | 0.15 – 0.25% | 2.00 – 3.00% |
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
| B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 |
| 2-5/8 – 4 | 115 | 95 | 16 | 50 | |
| 4-1/8 – 7 | 100 | 75 | 18 | 50 | |
| B8 Class 1 | All | 75 | 30 | 30 | 50 |
| B8M Class 1 | All | 75 | 30 | 30 | 50 |
| B8 Class 2 | Up to 3/4 | 125 | 100 | 12 | 35 |
| 7/8 – 1 | 115 | 80 | 15 | 35 | |
| 1-1/8 – 1-1/4 | 105 | 65 | 20 | 35 | |
| 1-3/8 – 1-1/2 | 100 | 50 | 28 | 45 |
Material | Specification | Standards | Size | Length |
ASTM A193 B8 CL3 StudBolt | IS BS ASTM | DIN, ISO, JIS, GB, IS, BS, ASTM | M 02 to M 160 | 3 mm to 200 mm |
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ASTM A193 B8 CL3 stud bolts are commonly used in high-temperature and high-pressure environments, such as in petrochemical, oil and gas, and power generation industries. They are ideal for critical applications requiring robust performance, including flanged joints, reactors, and pressure vessels. Their superior strength and corrosion resistance make them suitable for equipment exposed to extreme conditions, ensuring reliable and secure connections in demanding industrial settings.
ASTM A193 B8 CL3 Stud Bolts are commonly used to secure flanges, valves, pressure vessels, and piping systems in industries that demand exceptional corrosion resistance and high strength. In petrochemical plants and refineries, they stand up to harsh chemical exposure with reliability. In power generation and marine settings, they ensure a long service life, even in high temperatures and humid conditions. Their dependable performance in both static and dynamic load situations guarantees safety and structural integrity. These stud bolts are crucial for critical operations where precision, strength, and corrosion resistance are essential for seamless industrial performance.
Mira Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kuala lumpur, Malaysia, with over 8 years of experience serving global industries.
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